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Old 02-12-2014, 04:01 PM
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60wag 60wag is offline
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Join Date: Aug 2005
Posts: 2,018

I should have remembered that. My last 2F is becoming a distant memory. All of my current engines have the valve stuck in the valve cover.

If the flow of the PCV system is out the PVC valve to the intake manifold, why would the top of the head be any cleaner with the valve in the side cover? It's not like there isn't a bunch of oil already up there. I can see how there might be oil crud building up in the intake manifold.
'03 KTM 450EXC
"If you know what you're doing, then you aren't learning anything." - A. Lincoln
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